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Public
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Imagery and Base Maps
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Orthophotography
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1 - 6 of 6
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1. Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1992
1992. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...
2. Digital Orthophoto (DOQQ - quarter-quadrangle) for Delaware 1997
1997. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...
3. Digital Orthophoto (DOQQ - quarter-quadrangle) for Virginia
2000. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...
4. Digital Orthophoto (DOQQ - quarter-quadrangle) for West Virginia 1997
1997. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...
5. DVRPC 2005 Digital Orthoimagery for Southeast Pennsylvania - Tile Index
2005. Delaware Valley Regional Planning Commission. TILE INDEX - An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orienta...
6. DVRPC 2010 Digital Orthoimagery for Southeast Pennsylvania - Tile Index
2010. Delaware Valley Regional Planning Commission. This index represents the coverage of DVRPC's orthoimagery for the years 2000, 2005, and 2010 in the 5-county, Pennsylvania portion of the DVRPC re...